Shell model study of single-particle and collective structure in neutron-rich Cr isotopes
Data(s) |
2008
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Resumo |
The structure of neutron-rich Cr isotopes is systematically investigated by using the spherical shell model. The calculations reproduce well the known energy levels for the even-even Cr52-62 and odd-mass Cr53-59 nuclei, and predict a lowering of excitation energies around neutron number N = 40. The calculated B(E2; 2(1)(+) -> 0(1)(+)) systematics shows a pronounced collectivity around N = 40; a similar characteristic behavior has been suggested for Zn and Ge isotopes. Causes for the sudden drop of the 9/2(1)(+) energy in Cr-59 and the appearance of very low 0(2)(+) states around N = 40 are discussed. We also predict a new band with strong collectivity built on the 0(2)(+) state in the N = 40 isotope Cr-64. Chinese Major State Basic Research Development Program 2007CB815005 |
Identificador | |
Idioma(s) |
英语 |
Fonte |
Kaneko, K (Kaneko, K.); Sun, Y (Sun, Y.); Hasegawa, M (Hasegawa, M.); Mizusaki, T (Mizusaki, T.) .Shell model study of single-particle and collective structure in neutron-rich Cr isotopes ,PHYSICAL REVIEW C ,2008,78(6):64312 |
Palavras-Chave | #EXOTIC NUCLEI #DEFORMATION #CLOSURES #REGION #N=40 #LINE |
Tipo |
期刊论文 |